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Quercus pubescens - Downy Oak

Updated: Dec 8

Explore Quercus pubescens (Downy Oak) - its characteristics, habitat, cultivation, propagation, and functional uses and benefits.

Quercus pubescens - Downy Oak, Pubescent Oak

Quercus pubescens | Botanical Characteristics

Common Names: Downy Oak, Pubescent Oak

Family: Fagaceae

Appearance: A deciduous tree with a rounded crown and gray, rough bark. Its leaves are oblong, with a soft, downy underside.

Type: Perennial

Evergreen / Deciduous: Deciduous

Layer: Canopy

Root System: Features a deep and extensive taproot system

Height: 10–20 meters

Width: Up to 15 meters

Lifespan: Over 200 years

Growth Rate: Slow to moderate

Fertility: Not self-fertile

Flowers: Monoecious, with separate male and female flowers on the same plant

Pollinator: Wind-pollinated

Toxicity: Acorns contain tannins, which can be toxic if consumed raw in large amounts

Quercus pubescens | Habitat and Cultivation

Range

  • Native Range: Southern Europe, Mediterranean region, parts of Western Asia

  • Companionship: Grows alongside Mediterranean species like pines and junipers

  • Invasive Range: Not widely reported as invasive

  • USDA Hardiness Zone: 5 - 9

  • Minimum Chill Hours Required: None specified

Resistance/Tolerance

  • Poor Soil: High tolerance

  • Drought: High tolerance

  • Shade: Moderate tolerance

  • Flood: Low tolerance

  • Wind: High tolerance

  • Maritime: Moderate tolerance

  • Air Pollution: Moderate tolerance

  • Fire: High tolerance (adapted to fire-prone regions)

Thriving Conditions

  • Sun Exposure: Full sun

  • Soil Moisture: Prefers dry to moderately moist conditions

  • Soil Type: Well-drained, stony, or sandy soils

  • Soil PH: Prefers slightly acidic to neutral (6.0 - 7.5)

Propagation

  • Seeds: Propagated by acorns, which may require stratification

  • Cuttings: Not typically propagated by cuttings

Quercus pubescens | Functional Uses and Benefits

Edible: Acorns can be leached to remove tannins and used as a food source

Medicinal: Traditionally used for its astringent and anti-inflammatory properties

Cosmetics: Not typically used in cosmetics

Animal Feed: Acorns are occasionally eaten by wildlife and can be used as livestock feed after processing

Fiber: Not used for fiber

Timber: Valuable for firewood and durable timber

Firewood: Excellent for firewood, burns slowly

Wind Break: Can be used as a windbreak in agroforestry systems

Fence: Not used as a barrier plant

Cover Crop: Not used as a cover crop

Mulch: Not typically used as mulch

Nitrogen Fixer: No

Dynamic Accumulator: No significant data available

Pollinator Attractor: Yes, attracts various insects during flowering

Pest Repellent: Not typically known as a pest repellent

Wildlife Supporter: Provides food and habitat for birds, mammals, and insects

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